Home / 13,356.06-19,921.26-12,585.17

Finding the Fourth Proportional to 13,356.06, 19,921.26 and 12,585.17

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Solution

The fourth proportional to 13,356.06, 19,921.26 and 12,585.17 is: 18,771.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,356.06 : 19,921.26 = 12,585.17 : x
  2. Step 2: Convert to fraction form
    13,356.06/19,921.26 = 12,585.17/x
  3. Step 3: Cross multiply
    13,356.06x = 19,921.26 × 12,585.17
  4. Step 4: Simplify right side
    13,356.06x = 250,712,344.11
  5. Step 5: Solve for x
    x = 250,712,344.11/13,356.06
  6. Step 6: Final answer
    x = 18,771.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.